Another light freeze after the storms 

Posted: 6:20 am Tuesday, March 20th, 2018

By Kirk Mellish

The low pressure and frontal system that brought the stormy weather Monday night with scattered damage and power failures will turn into the 4th Nor’ Easter snowstorm and bring another bought of below-normal temperatures to Atlanta.

Some sleet and snow showers or flurries are even possible Wednesday in the high elevations of the Northeast Georgia mountains.

Surface weather chart late afternoon Tuesday:

Screen Shot 2018-03-20 at 5.44.19 AM

Severe weather risk Tuesday:

Screen Shot 2018-03-20 at 9.41.27 AM

Surface weather chart Wednesday Morning:

Screen Shot 2018-03-20 at 5.44.57 AM

Wednesday Night surface weather chart:

Screen Shot 2018-03-20 at 5.45.32 AM

FORECAST SNOWFALL ACCUMULATION:

Screen Shot 2018-03-20 at 5.59.54 AM

GFS ENSEMBLE LOW TEMPERATURE FORECAST THURSDAY AM:

Screen Shot 2018-03-20 at 5.52.02 AM

ECMWF Model Ensemble Temperature output:

KMGE_2018032000_eps_min_max_15

Screen Shot 2018-03-20 at 6.46.58 PM

Up and down active changeable weather pattern expected to continue through April as seen in the mean output from the European Model:

eps_t2m_1104h_conus_185(164)eps_qpf_1104h_conus_185(133)

No additional severe weather expected next 7 days.

Verification shows the SPC Severe Weather Outlook areas provided excellent spatial guidance for the Monday night event, well forecast:

Screen Shot 2018-03-20 at 6.38.55 PMScreen Shot 2018-03-20 at 9.00.02 AM

NWS Report on the tornadoes

Follow me on Twitter @MellishMeterWSB.

 

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